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Finding the Fourth Proportional to 378,404.92, 567,677.31 and 108,521.74

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Solution

The fourth proportional to 378,404.92, 567,677.31 and 108,521.74 is: 162,802.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,404.92 : 567,677.31 = 108,521.74 : x
  2. Step 2: Convert to fraction form
    378,404.92/567,677.31 = 108,521.74/x
  3. Step 3: Cross multiply
    378,404.92x = 567,677.31 × 108,521.74
  4. Step 4: Simplify right side
    378,404.92x = 61,605,329,439.72
  5. Step 5: Solve for x
    x = 61,605,329,439.72/378,404.92
  6. Step 6: Final answer
    x = 162,802.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.